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https://issues.apache.org/jira/browse/HBASE-19433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16280651#comment-16280651
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Josh Elser commented on HBASE-19433:
------------------------------------
bq. The action chooses random policy - which may be the same as the current one.
Nit-picky, you're sure your IT run hit this broken action? :)
You have some unused imports to remove as well.
I'm +1 if you tested it successfully locally. [~stack] what about you, boss?
> ChangeSplitPolicyAction modifies an immutable HTableDescriptor
> --------------------------------------------------------------
>
> Key: HBASE-19433
> URL: https://issues.apache.org/jira/browse/HBASE-19433
> Project: HBase
> Issue Type: Bug
> Components: integration tests
> Reporter: Josh Elser
> Assignee: Ted Yu
> Priority: Critical
> Fix For: 2.0.0-beta-1
>
> Attachments: 19433.v1.txt, 19433.v2.txt
>
>
> {noformat}
> 2017-12-01 23:18:51,433 WARN [ChaosMonkeyThread] policies.Policy: Exception
> occurred during performing action: java.lang.UnsupportedOperationException:
> HTableDescriptor is read-only
> at
> org.apache.hadoop.hbase.client.ImmutableHTableDescriptor.getDelegateeForModification(ImmutableHTableDescriptor.java:59)
> at
> org.apache.hadoop.hbase.HTableDescriptor.setRegionSplitPolicyClassName(HTableDescriptor.java:333)
> at
> org.apache.hadoop.hbase.chaos.actions.ChangeSplitPolicyAction.perform(ChangeSplitPolicyAction.java:54)
> at
> org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy.runOneIteration(PeriodicRandomActionPolicy.java:59)
> at
> org.apache.hadoop.hbase.chaos.policies.PeriodicPolicy.run(PeriodicPolicy.java:41)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> Found during some internal testing. Need to make sure this Action, in
> addition to the other, don't fall into the trap of modifying the
> TableDescriptor obtained from Admin.
> [~tedyu], want to take a stab at it?
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